YangZhou Xinyuan Electric Co., Ltd company News and Trends items

The instrument applies DSP core computing and digital signal processing technology. It can identify the breakdown point precisely through real-time signal waveform analysis and amplitude and frequency calculations hold the max. voltage value when the break down happens and protect immediately. Meanwhile, the relay switch will send a control signal and sound the alarm. An...

The Step-up transformer need a low partial discharge level and normally with several voltage Taps which could satisfied the test requirement for different input voltage of the transformer under test.

In addition to the water terminations they feature a water conditioning unit. When testing cables, the system extracts the produced heat losses via a closed water circuit and at the same time, monitors the conductivity of the resistive stress grader medium.

The test system induces a current in the test object causing it to heat up. The system can perform the heat cycle testing for power cables type test and pre-qualification test according to IEC 60840, and IEC 62067 etc. Based on pre-qualification test needs, test system is divided into two parts: test sample loop and simulation temperature loop.

Application For routine testing of high and ultra-high voltage cables up to 800 kV in accordance with IEC 60840 and IEC 62067 For inspection testing of high and ultra-high voltage cables and cable assemblies up to 1600 kV in accordance with IEC 60840 and IEC 62067 For applied voltage testing of power transformers up to 1600 kV in accordance with IEC 60076 For testi...

Normally there need two systems : AC voltage test set and Impulse voltage generator to apply those test. But with our combined test set, the AC voltage test and Impulse test could be applied with one test set. Easy for transport and assembling on the test site.

The AC test transformer can be either in insulation cylinder type with metallic cover and base or metal tank. The insulation cylinder modular test transformers can be stacked to connect in series or parallel to get larger voltage or current to extend its application range. With the rectifier, the system could apply the DC test.

The test systems generate lightning impulse voltage (LI, 1.2/50 µs), chopping lightning impulse voltages (LIC, front time 1.2 µs, front, crest or tail chopped), and switching impulse voltage (SI, 250/2500 µs) in accordance with IEC 60060-1; as well as IEC 60076-3 for transformers, and IEC 62067, 60840 und 60502-1 for cables).

Application 1. For routine testing of high and ultra-high voltage cables up to 800 kV in accordance with IEC 60840 and IEC 62067 2. For inspection testing of high and ultra-high voltage cables and cable assemblies up to 1600 kV in accordance with IEC 60840 and IEC 62067 3. For applied voltage testing of power transformers up to 1600 kV in accordance with IEC 60076 ...

PowerHV supplies test systems for factory use and on-site testing, as well we are able to deliver full-equipped stationary test bays with which the entire range of routine testing procedures can be accomplished on-site. Components of such moveable test systems are compact and can be transported on trailers or in 40ft shipping containers.

Applications High-voltage DC testing for transformers, cables, bushings, switchgears, etc. Wet and pollution testing DC current measurements at high-voltage potential For use indoors and outdoors or modular system for onsite testing For test and research of DC transmission line corona, radio interference, pollution flashover.

Application includeing : Routine testing of high and ultra-high voltage cables up to 800 kV in accordance with IEC 60840 and IEC 62067 ; Inspection testing of high and ultra-high voltage cables and cable assemblies up to 1600 kV in accordance with IEC 60840 and IEC 62067.

Testing of certain apparatus requires much high voltage or current that a straight AC test system is not sufficient. Thus resonant test reactor with a variable core is needed. The main advantage of such test systems is lower input power and larger output power. The resonant test system is designed to compensate capacitance in the testing circuit precisely by tuning induc...

Impulse voltage test systems are available for factory testing in three product lines (E, V,D and H). Application To generate impulse voltages for testing: Transformers Cables Gas-insulated switchgears (GIS) Arresters and other high-voltage devices For material testing in research or training programs For both factory and on-site testing

Cable terminations are used in routine, sample, and type testing of plastic-insulated medium and high voltage cables according to IEC 60840 (30-150kV), IEC 62067 (150-550kV), IEC 60060-1, IEC 60060-2 and IEC 60270. They act as the connection between the test object and the high voltage test system. There are two models of cable terminations using different techniques ...

CJDY Series Impulse voltage test systems are used for impulse voltage testing of transformers, cables, gas-insulated switchgears (GIS), arresters, and other high-voltage devices. The test systems generate lightning impulse voltage (LI, 1.2/50 µs), chopping lightning impulse voltages (LIC, front time 1.2 µs, front, crest or tail chopped), and switching impulse voltage (SI...

Application: -On-site testing of XLPE terrestrial and submarine cables according to -IEC 60840 and IEC 62067 -On-site testing of GIS according to IEC 60517 and IEC 62271-203. -On-site testing of transformer according to IEC 60076-3 -Withstand voltage testing -Partial discharge measurements

DC test systems are used to test components and complete systems found in electrical power supply systems and operating on DC voltage. POWERHV fulfill the requirements of IEC 60060-1. The can be equipped with polarity reversal. Applications High-voltage DC testing for transformers, cables, bushings, switchgears, etc. Wet and pollution testing DC current meas...

The resonant test systems can be either in insulation cylinder type or metal tank. Insulation cylinder reactors are in module and can be stacked to connect in series parallel to get much higher voltage or current. Additional voltage taps are possible for metal tank reactors. The output voltage is fed out through the tap-changers by HV bushings. This kind of reactors exte...

The PHQS87 is a high precision bridge particularly for use in laboratory. It mainly takes advantage of current comparison, which makes it extraordinary precise and reliable in measurement and distinguishes the bridge from Schering bridge and high voltage dielectric loss tester. The use of computer-aided data processing unit makes the measurement more intuitive and conven...

Partial discharge of the AC test transformer at rated voltage 500kV is less than 2pC. The customer make 2 times flashover test at both 450kV and 500kV for inspect the protection of the test system.